26-09-2009, 11:24 PM
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Like to learn
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Join Date: Jul 2007
Location: melbourne
Posts: 4,835
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Quote:
Originally Posted by alfi
hi
from what i have understood, they have used scottz glass for a long time, only now they are advertising it.
alfi
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Exactly !
The FPL glasses are ED crowns, similar to the Schott FK series. FPL 53 has
almost the dispersion characteristics of fluorite. BPM51 is similar to
Schott KzFS N1, which Roland Christen originally used in his early triplet
designs. NSL3 is similar to Schott K3 and along with BSL7 (similar to
Schott BK7) might make a suitable triplet with one of the FPL glasses.
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